Question

Plz answer if u answer I will make u Brainly

Answer 1

Answer:

no soooooo many are. there we cant

Answer 2

Explanation:

1. The life cycle of a frog consists of three stages: egg, larva, and adult. As the frog grows, it moves through these stages in a process known as metamorphosis. Frogs are not the only animals to undergo metamorphosis; most other amphibians also undergo remarkable changes throughout their life cycles, as do many species of invertebrates. During metamorphosis, two hormones, prolactin and thyroxine, control the transformation from egg to larva to adult.
2. Sex determination in the unborn baby. The sex of the unborn baby is determined by the sex chromosomes of the father. ... An egg will always have an X chromosome. Therefore, if the sperm contributes X chromosome then the baby will be a female (XX) and if the sperm contributes the Y chromosome, the baby will be a male (XY).
3. A female's internal reproductive organs are the vagina, uterus, fallopian tubes, and ovaries. The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus.
4. The jelly-like fluid that fills a cell is called cytoplasm. It is made up of mostly water and salt. Cytoplasm is present within the cell membrane of all cell types and contains all organelles and cell parts. Most of the important activities of the cell occur in the cytoplasm.

6.The seeds should be sown at right depth in the soil.The seeds should be sown at right interval or spacing.The seeds should not be sown in a dry soil.The seeds should not be sown in a highly wet soil

7.An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria.but we must take some precaution while having them Precautions to be taken while using antibiotics are:

Antibiotics should be taken in the right amount and at the right time. A wrong dose of antibiotics makes the drug ineffective. Also, excessive consumption of drugs may kill the useful bacteria present in our body.

1. Microorganisms are very useful to us. ... Microorganisms are used to prepare vaccines for various diseases. They are useful for agriculture sector, as they enhance the fertility of soil by fixing nitrogen.They work as natural cleaners, as they decompose the dead bodies of plants and animals.

2.The chemical properties of Metals and Nonmetals are described below. Let us start with the chemical properties of metals.

The density of metals is usually high.

Metals are malleable and ductile.

Metals form an alloy with other metals or non – metals.

Some metals react with air and corrode. For e.g. Iron.

Metals are good conductors of heat and electricity. Lead is an exception.

Generally, metals are in a solid state at room temperature. Except for Mercury. Mercury is in a liquid state.

Many metals produce metal oxide by burning in the oxygen of the air. Highly reactive metals react violently when they’re burnt in oxygen.

Metals like sodium and potassium are stored in oil as they react with air in seconds. They’re highly reactive metals.

Less reactive metals like gold, silver, platinum, etc do not tarnish easily. They stay shiny and lustrous.

Metals produce metal oxide and hydrogen gas while reacting with water.

Soluble metal oxides dissolve in water and create metal hydroxide.

Not all metals react with water. However, highly reactive metals like sodium and potassium react with water violently and an exothermic reaction takes places where the hydrogen immediately catches fire.

Salt and hydrogen are produced when a metal reacts with an acid.

Generally, a metal displaces a less reactive metal in a metal salt solution.

3.Fertilization is the biological process in which fusion of gametes of two different sexes, i.e., male and female takes place.

Internal fertilization occurs in human being. One egg is released from the ovary and is transferred to the fallopian tube during each ovulation cycle. The sperm travels to the egg through the fallopian tube. Fertilization also takes place in the fallopian tube.