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
iren2701 [21]
4 years ago
9

Pls im desprate and this thing is timed i need help thanks

Biology
1 answer:
Fynjy0 [20]4 years ago
8 0
First one is digestive system
second one is lion fish
i dont know the third one. im sorry
You might be interested in
In which group of children did scientists find results similar to those in harlow's monkey experiments?
Vladimir79 [104]
The correct answer is the group of Romanian orphans adopted by Western families. 
Harry Harlow is an American psychologist known for his highly controversial experiments on the maternal and social isolation in Rhesus monkeys. These experiments along with several previously developed theories formed the attachment theory. Harlow's experiments showed that monkeys isolated from their mothers at birth, exhibited later on in life aggressive behaviour and were unable to form social relationships. These experiments suggested that maternal separation can lead to animals with antisocial behaviour.
At the end of the Ceausescu regime in Romania, a big number of orphans were adopted in Western families. These orphans experienced poor living conditions in Romanian institutions, with no social interaction or proper nutrition. Romanian and British scientists followed the progress of these adopted orphans and the results suggested that this early deprivation was the cause of some social deficits. However, scientists are optimistic that these deficits can be reversed in some cases. 
8 0
3 years ago
The Go' for the reaction Citrate  Isocitrate is +6.64 kJmol-1 . The Go' for the reaction Isocitrate  α-Ketoglutarate is -267
xz_007 [3.2K]

Answer:

ΔG°' for the conversion of citrate to α-ketoglutarate = - 273.64  kJmol-1

Explanation:

ΔG°' for Citrate is +6.64 kJmol-1

ΔG°' for Isocitrate is -267 kJmol-1

ΔG°' for the conversion of citrate to α-ketoglutarate = ΔG°' for product - ΔG°' for reactant

ΔG°' for the conversion of citrate to α-ketoglutarate = -267 kJmol-1 - (+6.64 kJmol-1)

ΔG°' for the conversion of citrate to α-ketoglutarate = - 273.64  kJmol-1

7 0
3 years ago
Centipedes are important organisms in temperate forest ecosystems. They live under decaying materials and hunt for small insects
sergejj [24]
C) Predator because it HUNTS for small insects at night
8 0
4 years ago
Read 2 more answers
Match the steps in the cell cycle in the correct order
Tcecarenko [31]

Answer:

1. Chromosomes line up - metaphase

2. Cell growth - G1

3. Final preparations for division - G2

4. Chromosomes get pulled apart - anaphase

5. DNA replication - S

6. Chromosomes condense - prophase

7. Chromosomes uncoil and nucleus reforms - telophase

8. The cytoplasm and organelles divide, and now there are two identical cells - cytokinesis

Explanation:

There are four primary phases, or stages, in the cell cycle, which is a systematic process. Each stage has a goal that has to be achieved before moving on to the next. G1, S, G2, and mitosis are the stages.
There is growth during the G1 phase. A lot of protein is produced and water is pumped in, increasing the volume of the cell. The DNA is also examined at this time to see whether there has been any damage. The G1 phase precedes the S phase, therefore before going into S phase, the cell must make sure it has enough energy reserves.

The cell duplicates its DNA during the synthesis phase, also known as the S phase. DNA content doubles due to the duplication of all chromosomes. The compact state of DNA is created by proteins, which do not exist in and of themselves. Therefore, in order to ensure that the new DNA is properly packed when DNA is replicated, new packaging proteins must be produced. Histones are the proteins that house DNA. The production of new DNA is closely linked to the production of new histones.

A cell multiplies its organelles during the G2 phase. Right before the cells divide into two distinct cells during mitosis, the G2 phase occurs. There must be distinct functioning organelles in each daughter cell. Organelles like the golgi and endoplasmic reticulum are linked networks of sizable membrane pouches that may change size. Other organelles, including mitochondria and chloroplasts, are separate structures that must separate similarly to how cells do.

The process of physically dividing a cell into two daughter cells is called mitosis. Prophase, metaphase, anaphase, and telophase are its four basic stages. The nuclear membrane deteriorates as the chromosomes thicken during prophase. The center of the cell's chromosomes align during metaphase. One chromosome splits in half during anaphase, sending one half to either side. The telophase is characterized by the pinching together of the cell's centre to form two separate cells.

6 0
2 years ago
What will most likely happen to a charecteristic that has a high survival value in a population?
ioda

Answer:

D. The characteristic will increase in frequency

Explanation:

If the characteristic has high survival rate, the organism with that characteristic should also have a high reproduction rate, therefore increasing the population that has that characteristic

7 0
3 years ago
Read 2 more answers
Other questions:
  • A molecular clock assumes that the genes used are evolving rapidly. do not alter their rates in different lineages. are evolving
    9·1 answer
  • Which of the following nerves would you predict is NEVER involved in the development of strabismus?
    5·1 answer
  • What happens during the s sub-phase
    5·1 answer
  • How do chemical,physical,geological,and biological factors influence an aquatic ecosystem
    7·2 answers
  • Jamie is reviewing a new diet plan that involves purchasing pre-packaged meals and taking a patented energy supplement. In an ad
    12·2 answers
  • What si the process of photosytheses
    10·1 answer
  • Does it matter if a hypothesis is correct or not?
    12·2 answers
  • During fertilization in humans, _______________________.
    11·1 answer
  • Can someone pleaseeee help if you’re correct I’ll give u brainlist
    5·1 answer
  • How can humans modify their ecological niches to improve their population? Are there limiting factors? Is there a carrying capac
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!