1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alina [70]
4 years ago
10

Write a hypothesis for what will happen if elodea is put in a test tube in the dark.

Biology
2 answers:
vladimir2022 [97]4 years ago
7 0

Answer:

The second option is the answer: If elodea is put in a test tube in the dark with BTB, the BTB will turn yellow because photosynthesis will not occur in the dark, but the plant will be going through respiration releasing CO2.

Explanation:

Elodea is an aquatic plant that releases oxygen into its environment during the process of photosynthesis.

Elodea needs the requirements to carry out photosynthesis, but being placed in the dark it can not do so.

However it continues to carry out cellular respiration which results in the increase of carbon dioxide level in the water. This is indicated by the BTB turning yellow from green, the yellow colour is an indication of the higher amount of carbon dioxide present.

Natalija [7]4 years ago
6 0

Answer:

d

Explanation:

trust me

You might be interested in
The frontal lobes also include the primary ____________ which controls voluntary motor functions.
lakkis [162]

Answer:

The correct answer will be- primary motor cortex

Explanation:

The motor cortex is the portion of the brain present in the precentral gyrus of the frontal lobe of the brain.  The motor cortex is thought to be involved in the planning actions and control voluntary actions.

The motor cortex is divided into three regions: premotor cortex, primary motor cortex  and supplementary motor area.

The primary motor cortex is the region of the motor cortex which controls the voluntary movements in the human body by generating the impulse.

Thus, the primary motor cortex is the correct answer.

5 0
3 years ago
Which two of the following best describes what is happening in the picture?
MrRissso [65]

Answer:

A and D I think

Explanation:

It's not erosion, so that is out of the answer choices. And I doubt it is crystallization, so that is why I think it is A and D. (correct me if I am wrong.)

8 0
3 years ago
Many plants can grow in the littoral zone of a lake because
icang [17]

Answer:

A

Explanation:

The littoral zone is the near shore area where sunlight penetrates all the way to the sediment and allows aquatic plants to grow

5 0
3 years ago
The illustration below shows the steps of meiosis I. What is the step that is labeled D? metaphase I metaphase II telophase II t
WITCHER [35]

The right answer is metaphase II.

The process is performed in two nuclear and cytoplasmic divisions, called first and second meiotic division or simply meiosis I and meiosis II. Both include prophase, metaphase, anaphase, and telophase. First division prophase is long and consists of 5 stages: leptotene, zygotene, pachytene, diplotene, and diakinesis. It is at this point that genetic recombination takes place at the level of chiasmus.

During meiosis I, the members of each homologous pair of chromosomes are paired during prophase, forming bivalents. During this phase, a protein structure, called synaptonemal complex form, allows recombination between homologous chromosomes. Subsequently, a large condensation of the bivalent chromosomes occurs and go to the metaphase plate during the first metaphase, resulting in the migration of n chromosomes to each of the poles during the first anaphase. This reduction division is responsible for maintaining the number of chromosomes characteristic of each species.

In meiosis II, as in mitosis, the sister chromatids comprising each chromosome are separated and distributed between the nuclei of the daughter cells. Between these two successive steps, there is no DNA replication. The maturation of the daughter cells will result in the gametes.

7 0
3 years ago
Read 2 more answers
The following concepts led to the hypothesis that DNA has a double helix structure:
Maslowich
I and III.

Chargaff's law and Rosalind Franklin's discoveries
7 0
3 years ago
Other questions:
  • Common model organisms used to study biological phenomena include; E. coli bacteria, yeast, fruit flies, zebrafish, mice, and ev
    11·2 answers
  • Why are fossils not found in igneous rocks?
    14·2 answers
  • Which describes the missing step?
    10·1 answer
  • Why are common names not a good reference to a species?
    5·2 answers
  • Proteins in the cell membrane have many functions. Which type of protein would be used for cell recognition and as a receptor? A
    15·1 answer
  • Which number indicates the number of atoms of each element in a molecule of a substance.
    12·1 answer
  • 9. Which is a monomer of a protein?
    9·1 answer
  • What is the difference between a molecular formula and a molecular model?
    7·1 answer
  • How could researcher on how genes control traits in orchids benefit our understanding of the human genome
    6·2 answers
  • On the graph to the right, indicate which curve corresponds to each type of chlorophyll. Which curve corresponds to chlorophyll
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!