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masha68 [24]
3 years ago
7

which scientist theory did redi and pasteur's experiments refute? a.the theory of evolution b.the theory of spontaneous generati

on c.the theory of natural selection d.the cell theory
Biology
1 answer:
Neporo4naja [7]3 years ago
3 0
I believe it was the Cell theory. :)
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What is the thin-walled tube inferior to the uterus, anterior to the rectum, and posterior to the urethra and bladder
lisov135 [29]

Answer:

The vagina

Explanation:

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2 years ago
What types of materials pass through the cell membrane using structure d?
sashaice [31]

Answer:

B. Charged Particles and Ions

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3 years ago
Continuous rotation of the CT x-ray tube and detector array, with simultaneous movement of the CT couch, has been accomplished t
Andrei [34K]

Answer:

The options

A. Additional cables

B. Slip rings

C. Multiple rows of detectors

D. Electron beam CT.

The CORRECT ANSWER IS B.

B. Slip rings

Explanation:

During the 1990s, the use of slip ring technology promoted consecutive rotation of the x-ray tube (via removal of cables) and concurrent couch locomotion.

The Sixth-generation CT scanning is referred to as helical (or spiral) CT—allowing procurement of volume multislice scanning.

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Fifth-generation CT employs electron beam; as the ultra high-speed CT is employed majorly for cardiac imaging.

3 0
3 years ago
A scientist has discovered a new plant species in the Amazon rainforest she tells her fellow scientist at the Playhouse she has
Anna11 [10]

Answer:

It is a seeded vascular plant.

It does not depend on insect pollination.

Explanation:

The complete question is: <em>A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm? Its seeds have one or two cotyledons. Its stems' vascular bundles are scattered. It does not depend on insect pollination. It is a seeded vascular plant. </em>

<em />

<em>The correct option would be that the plant is a seeded vascular plant and does not depend on insect pollination.</em>

Gymnosperms are the only group of plants that produce cones. They are one of the plant groups that have vascular tissues in the form of xylem and phloem as well as been able to produce seed in the form fo cones. Hence, they are said to be seeded vascular plants.

Gymnosperms also carry out their pollination by relying solely on wind for the transfer of their pollen grain to the female organ. In other words, they do not depend on insect for pollination.

8 0
3 years ago
Describe stages of cell signaling: a. List and describe the three stages of cell signaling. b. List the three types of receptors
liraira [26]

Answer:

a.There are three signaling pathway

1- Reception in which molecule binds to receptor

2- Signal transduction in which activation of intracellular pathway and enzyme occur.

3- Cellular response in which specific response of cell occur according to receptor and ligand.

b. Three types of receptors are

1- autocrine

2- paracrine

3- endocrine.

Explanation:

autocrine receptors are signaling pathway in which cell releases its molecule and bind to its own cell receptor example cancer cells while paracrine in which ligand binds to other nearby cell receptor and it is used during development  and in endocrine cell target distinct cell and travel through blood stream like hormones functioning.

3 0
3 years ago
Read 2 more answers
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