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AysviL [449]
2 years ago
14

This is about environmental systems ​

Biology
1 answer:
zlopas [31]2 years ago
4 0

Answer:

A. A weak or strong current

Explanation:

D. is inccorect because rivers are always freshwater

C. is incorrect because seawater is salt water

B. is incorrect because rivers have waterflow.

Mark me brainliest and have a great day!

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3. How are frog eyes different from human eyes?​
Nastasia [14]

Answer:

Most frogs see well only at a distance, but they have excellent night vision and are very sensitive to movement.This peripheral vision helps them spot predators and prey. Humans and other mammals focus images by changing the shape of the lens. Like a camera lens, frog eyes focus by moving the lens back and forth.

4 0
2 years ago
Which of the following lists the parts of a reflex are in the corret order?
Murrr4er [49]

Answer:

A) receptor, sensory neuron, interneuron, motor neuron, effector

Explanation:

In a reflex arc, the receptors present in the skin receive stimulus and generate afferent impulse. The sensory neuron transmits the impulse to the interneuron. Interneuron is present in the spinal cord and activates it. The interneuron then sends back the impulse through the motor neurons to effectors whcih are present in the muscles for the response.

6 0
3 years ago
Which of these statements is true about autotrophs, but not heterotrophs?
natka813 [3]
The third one,
Autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar. The glucose gives plants energy. Plants also use glucose to make cellulose, a substance they use to grow and build cell walls.
7 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAPPPPPPP
nevsk [136]

Answer:

hope i helped but i think its b or d

Explanation:

4 0
3 years ago
Read 2 more answers
To answer question: look up "hidayas story in black and white" and it should give you the article.
loris [4]

Answer:

•The gene responsible for the albinism is sex-linked

•The gene responsible for the albinism is recessive

• The pedigree is contained in the attached file

Explanation:

The gene responsible for the trait of albinism is said to be sex-linked because all those that were mentioned with the expression of albinism were females

The gene responsible for the trait of albinism is also said to be recessive because it was found to be rarely expressed and this goes in line with the definition of a recessive gene, which says; a recessive gene is the gene that remains unexpressed ( phenotypically) in the presence of it counterpart ( the dominant gene) in an allelic pair.

6 0
3 years ago
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