Which of the following do protists NOT have?

Answers

Answer 1

Answer:

you didnt put the choices, give me the choices and I can tell you

Explanation:


Related Questions

what are energy-giving nutrients

Answers

Answer:

The nutrients that provide energy are commonly referred to as macronutrients (carbohydrates, lipids, and proteins). Carbohydrates and proteins provide a similar amount of energy per gram of food.

Explanation:

Which statement is true about a nucleus?  a It is surrounded by a membrane.  b It is the site of enzyme storage.  c It is surrounded by the nucleolus.  d It is the site of energy conversion.​

Answers

Answer:

Option D

Explanation:

The well defined nucleus is absent in prokaryotes whereas the well defined nucleus covered with nuclear envelope is present in eukaryotes. The site of replication and transcription is the nucleus in the living organism.

The nucleus contains the double membrane structure. Outer membrane and inner membrane covers the nucleus. Nucleus also contains the nuclear pore through which molecules can move inside and outside of the nucleus and the cytoplasm.

how would you describe the motion of a transverse wave

Answers

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Explanation:

hope it helps you.

Change TCA-GAT from DNA into mRNA

Answers

Answer:

AGU-CUA

Explanation:

An mRNA sequence is made using a DNA sequence as a template. The sequence is dictated by complementary base pairing.

DNA uses the bases A, T, C and G. A is complementary to T and G is complementary to C.

RNA uses the bases A, U, C and G. A is complementary to U and G is complementary to C.

When transcribing DNA to RNA:

C is paired with GG is paired with CA is paired with UT is paired with A

Therefore, TCA-GAT  is transcribed to AGU-CUA

Which muscle is the most capable to provide the most strength for a frog to jump?
a)lower forelimb
b)upper forelimb
c)calf muscle
d)thigh muscle

Answers

Answer:

D. thigh muscle

Explanation:

what body systems ate most pikely involved in sensing and responding to a sharp object

Answers

Answer:

The nervous system, the integumentary system, the muscular system (and the skeletal system) are all involved in responding to a sharp object.

Explanation:

BRANLIEST PLS HURRYy

Answers

Answer:

Illustration B

Which substance is a product of glycolysis?

A. Lactate
B. Oxygen
C. Pyruvate
D. Water

Answers

B oxygen is the answer
Glycolysis is about breaking sugar
It will produce two pyruvate two nadh two atp
So C

15. List 3 characteristics of a tropical rainforest:

Answers

Answer: 1. very high annual rainfall

              2. high average temperatures

              3. high levels of biodiversity

Explanation:

Answer:

Dense, lush, exiotic

Explanation:

tropical forests are very thick with vegetation, and there's lots of it, meaning the forest is lush, or healthy. Exotic meaning it is full of interesting animals and plants found no where else.

hope this helps!

-lily :)

up to about three thousand million years ago there was no oxygen in Earth's atmosphere today about one-fifth of the atmosphere is oxygen gas. suggest what caused this change???


pls help​

Answers

Answer:

Oxygen makes up about one-fifth the volume of Earth'­s atmosphere today, and is a central element of life as we know it.

But that wasn'­t always the case. Oxygen, although always present in compounds in Earth'­s interior, atmosphere, and oceans, did not begin to accumulate in the atmosphere as oxygen gas (O2) until well into the planet'­s history. What the atmosphere was like prior to oxygen'­s rise is a puzzle that Earth scientists have only begun to piece together.

Earth coalesced a little more than 4.5 billion years ago from bits of cosmic debris. Liquid oceans existed on the planet almost from the beginning, although in all likelihood they were repeatedly vaporized by the massive meteorites that regularly clobbered the planet during its first 700 million years of existence. Things had settled down by 3.8 billion years ago, when the first rocks that formed under water appear in the geologic record. (They exist in what is now southwest Greenland.)

If Earth had water, it must have had an atmosphere, and if it had an atmosphere, it must have had a climate. What was Earth'­s early atmosphere made of? Nitrogen (N2), certainly. Nitrogen makes up the bulk of today'­s atmosphere and likely has been around since the beginning. Water vapor (H2O), probably from volcanic emissions. Carbon dioxide (CO2), also emitted by volcanic eruptions, which were plentiful at that time. And methane (CH4), generated inside the Earth and possibly also by methane-producing microbes that thrived on and in the seafloor, as they do today.

Carbon dioxide, water vapor, and methane played an important role in Earth'­s subsequent development. Four billion years ago, the Sun was 30 percent dimmer, and therefore colder, than it is today. Under such conditions, Earth'­s water should have been frozen, yet clearly it wasn'­t. The water vapor, carbon dioxide, and methane acted as greenhouse gases, trapping heat and insulating the early Earth during a critical period in its development.

Of oxygen, meanwhile, the early atmosphere held barely a trace. What did exist likely formed when solar radiation split airborne molecules of water (H2O) into hydrogen (H2) and oxygen (O2). Hydrogen, a lightweight gas, would have risen above the atmosphere and slowly been lost to space. The heavier oxygen gas, left behind, would have quickly reacted with atmospheric gases such as methane or with minerals on Earth'­s surface and been drawn out of the atmosphere and back into the crust and mantle. Oxygen could only begin to accumulate in the atmosphere if it was being produced faster than it was being removed'—in other words, if something else was also producing it.

That something was life. Although the fossil evidence is sketchy, methane-producing microbes may have inhabited Earth as long ago as 3.8 billion years. By 2.7 billion years ago, a new kind of life had established itself: photosynthetic microbes called cyanobacteria, which were capable of using the Sun'­s energy to convert carbon dioxide and water into food with oxygen gas as a waste product. They lived in shallow seas, protected from full exposure to the Sun'­s harmful radiation. (To learn more about these organisms and the fossil evidence for them, watch the accompanying video "Early Fossil Life.")

Please help me ASAP real quick n easy

Answers

Answer:

Carbon monoxide gas.

Explanation:

The others are direct sources of groundwater pollution as the go directly on the ground. Hope this helps!

What is the correct formula for photosynthesis?

6CO 2 + 12H 2O ---> C 6H 12O 6 + 6O 2
C 6H 12O 6 + 6O 2 + 6H 2O ---> 6CO 2 + 12H 2O
6CO 2 + 12H 2O ---> C 6H 12O 6 + 12O 2
12H 2O + C 6H 12O 6 --->6CO 2 + 3O 2 + 3H 2O

Answers

Answer:

Photosynthesis is a process by which plants and photosynthetic bacteria obtain their food in presence of sunlight from water and carbon dioxide. They produce glucose as the food and oxygen is emitted as the byproduct. The equation for photosynthesis is - 6CO

2

+12H

2

O→C

6

H

12

O

6

+6H

2

O+6O

2

↑.

Thus, the correct answer is 'Photosynthesis.'

Explanation: hope this helps!

Describe the steps in making, packaging, and exporting a protein from a cell.​

Answers

Answer:

1. proteins are assembled on ribosomes

2. proteins targeted for export to the cell membrane, or to specialized locations within the cell. They complete their assembly on ribosomes bound to the rough ER

3. Newly assembled proteins are carried from the rough ER to the golgi apparatus in vesicles

4. the golgi apparatus further modifies proteins before sorting and packaging them in the membrane-bound vesicles

5. vesicles from the golgi apparatus are shipped to their final destination in or out of the cell

Explanation:

Hope you have a great day ;-)

Seafood Watch recommends which seafood _______.
a. to buy or avoid
b. to catch and sell
c. to harvest sustainably
d. is safe to eat

Answers

Answer:

a

Explanation:

to buy or avoid

Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.

What is seafood?

Seafood is food obtained from the sea. Unsustainable fishing methods, such as dragging and dynamite fishing, entrap or kill various species that are not necessarily targeted by the fishing industry. By identifying varieties of seafood that have been caught sustainably, Seafood Watch promotes them over those that have not.

The theory is that since only fisherman who employ sustainable practices are financially rewarded, they will outperform rivals. Based on rigorous scientific standards for environmental sustainability, our Seafood Watch program assigns grades to seafood collected or raised all around the world.

Our suggestions can be used by customers and business owners to locate seafood that has been farmed sustainably. Numerous species are included in the exhaustive list, along with information about where in the water they were caught—from the wild or from farms—and how they were harvested.

Therefore, Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.

Learn more about species on:

https://brainly.com/question/9506161

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Are there any mammalian cells that would be a good source for dividing cells?

Answers

Answer:

yes

Explanation:

which of the following is not an example of a trait a)eye color b)ear shape c) species d) body height​

Answers

Eye color and ear shape are inherited.
Body height is mainly inherited/ influenced.
Species cannot be changed? So my guess is that C. Is the correct answer as it is not a inherited trait.
If that is wrong, then the answer is D. Because I would think body height is influenced by the two parents.

As per observation the b)ear shape as it doesnt justify genetics laws of inheritence , and law of dominance.

What are  traits?

It is genetics informtion transfer from parents to offsprings.

The following is not an example of a trait ear shape as it cannot be dominant, and cannot be justified probably instead ear lobes can be there used as a traits.

Thus this  is well explained.

To learn more about the trait refer to link :

https://brainly.com/question/7375078

Another name for a fertilized egg is a

Answers

Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.

Which are examples of harmful mutations? Check all that apply.

Answers

Answer:

Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:

Answer:

Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:

Explanation:

Describe each of the following:
Sickle Cell Anemia
Diabetes
Acne
HELP!!

Answers

Answer:

1. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons.

Treatments: Blood transfusion

Symptoms: Pain

2. Diabetes is the condition in which the body does not properly process food for use as energy. Most of the food we eat is turned into glucose, or sugar, for our bodies to use for energy. The pancreas, an organ that lies near the stomach, makes a hormone called insulin to help glucose get into the cells of our bodies.

3. Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages.

How long did it take to purify Interferon? *

7 years
17 years
27 years
37 years

Answers

i think 17 years is right but i’m not sure
it takes about 17 years for it to be purified.

Which of the following cells have a nucleus?

- Animal cell
- Bacteria cell
- Plant cell

Which of the following cells have a cell wall?

-animal cell
- bacteria cell
- plant cell

Answers

Answer:

Animal and Plant cells both have a nucleus, and only the Plant cell has a cell wall.

Explanation:

Hope this is correct. If it is, please give me Brainliest.

Answer:

An animal cell and plant cell both have a nucleus. Plant cells have a cell wall because the cell wall helps protect and support the plant cells.

Select all the correct answers,
Based on these images, what can you conclude about the organisms?

20 points!

_____________________

A. They’re a mixture of vertebrates and invertebrates
_____________________

B. They have similarities in their embryonic stages that don’t exist in their adult forms
_____________________


C. They all undergo metamorphosis
_____________________


D. They all contain a backbone, or spinal column
_____________________

E. They’re the same species of organism
_____________________

Answers

Answer:

D they all contain a back bone

Explanation:

because they are vertebrates

Answer:

D.) correct on plato

Explanation:

Which of the following words describe most of the trillions of cells in your body?

A. Specialized

B. Undifferentiated

C. Pluripotent

D. Embryonic

Answers

Answer:

A. specialized

Explanation:

A cell is the basic unit of life. However, there are many different types of specialized cells. This means they are modified by size, shape, or function according to their purpose. Specialized cells make up tissues, tissues make up organs, and organs make up the systems that work together to make up our bodies.

what makes the red blood cell special, why is it special, how is it different than other cells, what is its primary function. (Minimum 5 sentences)

Answers

Red blood cells carry oxygen from our lungs to the rest of our bodies. It carries a special protein called haemoglobin, which helps carry oxygen from the lungs to the rest of the body, it has no nucleus and can easily change shape

I hope that helped :(

Who is the father of the biology?​

Answers

Answer:

Aristotle is known as the father of biology

Answer:

Aristotle.

Explanation:

He revealed his thoughts about various aspects of the life of plants and animals. Therefore, Aristotle is called as the Father of Biology.


Environmental influences begin at birth and continue throughout life.
Please select the best answer from the choices provided
True or False.

Answers

i believe the correct choice is true

Answer:

On ed2020 the answer is false.

Explanation:

True or False, there are genes in our bodies that stop cells dividing too
fast?

Answers

Answer:

true

Explanation:

true true true true true

What is the main negative effect of slash and burn deforestation in rain forests?


The erosion of thin, fragile tropical topsoils

Heavy smoke in the air causes respiration problems for humans

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Bare land warms absorbs heat and warms the surrounding air faster than forested areas.

Answers

Answer:

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Answer:

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Explanation:

i had this on a quiz and it was right =]

Which of the following is not a possible sign of a drug addiction?

A.
engaging in risky behavior to obtain drugs
B.
allowing drug use to interfere with basic life functions
C.
hanging out with people who use drugs often
D.
using drugs to cope with personal problems

Answers

Answer: D

Explanation:

I believe its D because people with PTSD take pills which are considered as a type of drug pills to get over their anxiety and can calm their nerves. They aren't addicted to this type of pill, they just take it because they need it, not cuz they want it.

The following is not a possible sign of a drug addiction D. using drugs to cope with personal problems. Thus, option "D" is correct.

What are the different stages of drugs?

The first stage of drug use is the stage in which the individual starts and continues to use the substance for various reasons. In the tolerance stage, the brain has made significant changes in response to the substance and can no longer produce the same mental or physical effects. The next stages of dependence and addiction are characterized with cravings for the substance, inability to maintain daily responsibilities, spending extra time seeking out the substance and using.

Thus, option "D" is correct.

To learn more about drug click here:

https://brainly.com/question/13294633

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BRANLIEST PLSSSS HELPPPP

Answers

Answer:

I would agree D because energy cannot be created or destroyed in a chemical reaction :)

Explanation:

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