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castortr0y [4]
3 years ago
12

At what tropic level do the killer and whales primarily feed

Biology
2 answers:
lions [1.4K]3 years ago
7 0

Answer:

third and fourth trophic levels

Explanation:

tangare [24]3 years ago
6 0
Third or fourth tropic levels I hope this helped you
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You're on the pilot episode of a new game show called "The Transport Factor." The host hands you three different amino acids, fo
sp2606 [1]

Answer:

Nine

Explanation:

These are called carrier proteins, and they have what it is called: solute-binding sites, that when saturated, they are considered "full".

Each different amino acid needs a separate carrier protein to move it across the plasma membrane, so that's 3, then the four different sugars need separate carriers as well, we add 4 more then, we have 7 so far, finally the 2 different ions use 2 more, plus the other 7, totals 9.

5 0
3 years ago
How does DNA lead scientists to better classify organisms?<br> ANSWER FAST!! PLEASE!!!
eimsori [14]
DNA acts as a sort of set of instructions for building an organism.
In that way, different types of organisms--plants, animals, bacteria, etc.--can all be differentiated through their DNA because it is directly linked to how they function.
3 0
3 years ago
A cheeseburger from a fast food restaurant contains 19 g of fat, 20 g of carbohydrate, and 28 g of protein. How many kcal of ene
Nikolay [14]

Answer:

which equals 360 cal for total energy

Explanation:

We simply get the sum of the product of each mass and caloric values.

Total energy = 19 g * 9 kcal / g + 20 g * 4 kcal / g + 28 g * 4 kcal / g

Total energy = 363 kcal

5 0
3 years ago
Glucose molecules cross the cell membrane by traveling through special proteins without the use of energy. This is known as:
LiRa [457]

Answer:

the answer is passive transport

3 0
3 years ago
Women have a tendency to retain water during part of the menstrual cycle because estrogen mimics the action of what
Ira Lisetskai [31]

Answer:

This question lacks options, options are:

A) ADH

B) aldosterone

C) atrial natriuretic hormone

D) oxytocin

E) prolactin

The correct answer is B.

Women have a tendency to retain water during part of the menstrual cycle because estrogen mimics the action of <u>aldosterone</u>.

Explanation:

The female sex hormones produced by the ovary (estrogens and progesterone) are substances that, through the blood, will carry messages to all the organs of the female genital system (uterus, tubes and ovaries) to achieve their correct function. Aldosterone concentration normally increases at the time of ovulation and remains elevated during the luteal phase of the menstrual cycle. Women present during the premenstrual phase, compared to the luteal and follicular phases, an increase in body weight, due to an increase in fluid retention, this because the menstrual cycle modulates the renin-angiotensin-aldosterone system. High levels of estrogen and progesterone in the mid-luteal phase are associated with a greater increase in adrenal and renal hormones and retention of more volume.

5 0
4 years ago
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