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Ratling [72]
3 years ago
5

Where does the first stage of photosynthesis occur.

Biology
1 answer:
NARA [144]3 years ago
7 0

Answer:

The first step of photosynthesis occurs in the chloroplasts of plant cells.

Explanation:

Light photons are absorbed by a pigment called chlorophyll, which is abundant in the thylakoid membrane of each chloroplast.

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based on the living things in the pyramid, tell me what examples would fit into these categories: primary producers, primary con
algol [13]

Answer:

- Oak trees: primary producers

- Caterpillars: primary consumers

- Blue Jays: secondary consumers

- Hawks: tertiary consumers

Explanation:

A trophic pyramid, also known as ecological pyramid or energy pyramid, is a graphic representation that shows the relationships between different types of organisms (i.e., producers and consumers) at the trophic levels of an ecosystem. The primary producers are autotrophic organisms that obtain energy from sunlight and chemical compounds from nonliving sources (e.g., photosynthetic plants, algae, etc). The primary consumers are organisms that eat primary producers (e.g., herbivores), while secondary consumers are organisms that eat primary consumers (e.g., omnivores). Moreover, tertiary consumers are predators and/or omnivores that eat secondary consumers (e.g., hawks). Finally, decomposers (e.g., bacteria) are organisms that obtain nutrients and energy by breaking down dead organic material (i.e., dead organisms) at all trophic levels into nutrients.

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3 years ago
_____ can disrupt cellular homeostasis and can even lead to uncontrolled cell division and form of cancers
Gekata [30.6K]
The correct answer would be carcinogens. Carcinogens can disrupt cellular homeostasis and can even lead to uncontrolled cell division and form of cancers. These are substances that damages the cellular metabolic processes in the body. Carcinogens are found everywhere; it may be in our food, radiation or even some of the ingredients of the things we use daily. 
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3 years ago
Transgenic organisms can express the foreign genes because all organisms are based on the same ____
jeyben [28]
Your answer is A) Recombinant DNA. I just took this quiz. Thanks
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3 years ago
What is the correct order of mechanical events associated with cardiac muscle contraction?
adelina 88 [10]
Missing choices:

a) Calcium entry into the sarcoplasm, calcium binds to troponin, muscle contracts, closing of calcium channels, calcium released from troponin, muscle relaxes

b) Calcium entry into the sarcoplasm, muscle contracts, calcium binds to troponin, closing of calcium channels, calcium released from troponin, muscle relaxes

c) Calcium entry into the sarcoplasm, calcium released from troponin, muscle contracts, closing of calcium channels, calcium binds to troponin, muscle relaxes

d) Calcium entry into the sarcoplasm, closing of calcium channels, calcium binds to troponin, muscle contracts, calcium released from troponin, muscle relaxes

My answer: d) Calcium entry into the sarcoplasm, closing of calcium channels, calcium binds to troponin, muscle contracts, calcium released from troponin, muscle relaxes
8 0
3 years ago
Which figure has an orthocenter outside the triangle?
Lena [83]

Answer:

Orthocenter of a Triangle

The orthocenter of a triangle is the point where the perpendicular drawn from the vertices to the opposite sides of the triangle intersect each other.

• For an acute angle triangle, the orthocenter lies inside the triangle.

• For the obtuse angle triangle, the orthocenter lies outside the triangle.

• For a right triangle, the orthocenter lies on the vertex of the right angle.

3 0
2 years ago
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